I do the loading for a friends .338 RUM. He already had a brake installed by the time I got it so recoil was a non-issue. The rifle will shoot well with both 225 gr TTSX's and 225 gr Accubonds. mtmuley
A buddy of mine shoots a 338 UltraMag BDL I know he has taken a few animals with it and I think he is getting about a 1 inch group with hand loads. He has also had a muzzle break installed.